<p>Is it redundant to double major in computer science and in mathematics with a computer science concentration?</p>
<p>I have no first hand knowledge but the webpages for departments at Cornell are quite good and address some of the questions you have been asking. Seems like this is done fairly often and is not redundant because necessary courses may satisfy requirements of both majors. See Note about Double Major.</p>
<p><a href=“http://www.math.cornell.edu/m/Undergraduate/Major/major”>http://www.math.cornell.edu/m/Undergraduate/Major/major</a></p>